Network fragmentation measurement in an optical wavelength division multiplexing (WDM) network
US9166723B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2014 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Feb 11, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0257
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method implemented in a network apparatus used in a wavelength division multiplexing (WDM) optical network is disclosed. The method includes (a) finding K-shortest routes between each node pair (s, d), where s, dεV and |V|≦K, where V is a set of reconfigurable optical add-drop multiplexer (ROADM) nodes, (b) selecting unconsidered node pair (s, d), (c) selecting unconsidered route k between nodes s and d out of the K-shortest routes, (d) finding a bit map of route k by performing bit-wise logical AND operation on bit vectors of fibers along route k, (e) selecting unconsidered line rate l out of offered set L of line rates, and (f) finding a probability αls,d,k of provisioning a connection with line rate l. Other apparatuses, systems, and methods also are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.